Company: Onyx-Conseil
Location: London
Posted: May 2nd, 2026
We offer a competitive salary, excellent pension, private healthcare and a share scheme (3.5% + 3.5% matching), making you a CGI Partner rather than just an employee.
CGI’s Space, Defence and Intelligence business unit delivers innovative, mission‑critical solutions to some of the UK government’s most complex and challenging problems. We design, build, and operate bespoke, secure systems that help keep the nation safe and secure. Our work spans cloud, on‑prem and hybrid environments, underpinned by strong cyber and engineering best practices.
We are seeking experienced Site Reliability Engineers to join our cross‑functional teams supporting secure, cloud‑based and big‑data platforms. Working closely with clients and internal delivery teams, you will help design, build, operate, and continuously improve highly reliable, scalable systems within a secure environment.
Due to the nature of the work, this role requires onsite attendance and applicants must be solely UK Nationals (not dual nationals and not visa holders) with existing HMG DV / HLC clearance.
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